D — Diode

The diode is a two-terminal semiconductor device that allows current to flow primarily in one direction.

Syntax

D<name> <anode> <cathode> <model_name> [<area>] [OFF] [IC=<vd>]

Parameter	Description
`anode`	Anode node (positive terminal)
`cathode`	Cathode node (negative terminal)
`model_name`	Name of a `.MODEL D(...)` definition
`area`	Area factor (multiplier for current capacity)
`OFF`	Initial guess: device is off
`IC=vd`	Initial diode voltage for `UIC`

D1 ANODE CATHODE 1N914
D2 IN OUT MyDiode 2.0
D3 A B DMOD OFF

.MODEL 1N914 D(Is=2.52e-9 Rs=0.568 N=1.752 Cjo=4e-12 M=0.4 tt=20e-9)

Parameter	Description	Default
`Is`	Saturation current	1e-14 A
`Rs`	Series resistance	0 Ω
`N`	Emission coefficient	1
`Cjo`	Zero-bias junction capacitance	0 F
`M`	Grading coefficient	0.5
`Vj`	Junction potential	1 V
`tt`	Transit time	0 s
`BV`	Reverse breakdown voltage	∞
`IBV`	Current at breakdown	1e-3 A

Diode IV Characteristic
D1 OUT 0 1N914
V1 OUT 0 0
.model 1N914 D(Is=2.52e-9 Rs=0.568 N=1.752)
.DC V1 -1 1 10e-3
.SAVE I(V1)
.END